We can explain why humans need skin. Our mode of human reality is electrical. The human body generates an electric charge which has a certain electric potentional – This is what powers your consciousness and body. A Human is a bioelectric machine (As Tesla posited).
Human skin is an INSULATOR, just like the rubber on an electric line. The Aether (Or the air around you, if you like) holds a higher electric potential than a human body does. This is how Tesla created his free energy tower. Electric differential and potentional by interaction with the Aether.
Our skin is essentially the rubber insulator that’s protecting the bare electric wire that is our human form, from the electromotive differential of the Aether that surrounds us. Without skin, humans would be electrocuted/burned by the higher electromotive charge of the Aether that surrounds them.